Static Readonly vs. Const in C#: When Should I Use Which?

C# field statement The difference between "static reading" and "constant"

In the field of programming, understanding the difference between

and static readonly is essential for effective code organization and maintenance. This article aims to clarify when every method is used according to the observations and suggestions of experts. const

Comparison with

static readonly const and

are used to define unsusable values ​​in the class. However, there are subtle differences between them:

static readonly const

:

Declarier a static field. This field can only be initialized during the type initialization period, and then cannot be modified. It is a category constant that can be accessed from the outside.
• static readonly : Declarier a constant member, which is initialized at the Internal United, and cannot be modified.
Members can have any access level, including
• , or const. const internal Choose the right method protected private Usually, it is recommended to use the public constant value
. This ensures that these values ​​can be easily accessed from the outside class while maintaining its invariance. For internal or non -public constant values, you can use

to control access more finely.

Attributes and read -only fields

static readonly Although the field provides invariance, they are not always the most elegant solution when processing constant values. A common alternative method is to use the attributes of only const accessors, allowing external access constant values ​​to be realized without public implementation. This method may be beneficial in the following circumstances:

This value may need to be dynamically calculated at runtime.

static readonly You want to maintain the same interface while hiding the underlying implementation. get

Conclusion
• The subtle difference between
and
• can instruct you to make a wise decision when defining the regular value in the definition code. By considering accessability requirements, potential changes, and performance effects, you can choose the most suitable method for each situation. Whether you choose the field or only read attributes, ensuring that it is not degenerated while maintaining code readability is critical for writing and easy maintenance.

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